/* ==========================================================================
   sims.css: the <cs-sim> frame, its controls and readouts (PLAN §5.3.4, §4)
   The frame markup is generated by assets/js/sim-frame.js. Sim modules only
   draw into .sim__stage and add controls/readouts through the controls API,
   so they should rarely need their own CSS. If they do, scope it under
   cs-sim[src="<id>"] in a page-level <style> and flag it as a WP-REQUEST.
   ========================================================================== */

cs-sim { max-width: var(--wide); }

.sim {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  overflow: clip;
  font-family: var(--font-ui);
  font-size: var(--fs--1);
  color: var(--ink);
}

.sim__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-2) var(--s-4);
  padding: var(--s-2) var(--s-2) var(--s-2) var(--s-4);
  border-bottom: 1px solid var(--line);
}
.sim__title {
  font-family: var(--font-ui);
  font-size: var(--fs-0);
  font-weight: 600;
  line-height: 1.3;
  display: flex; align-items: center; gap: .55em;
  margin: 0 !important;
}
.sim__title::before {
  content: "";
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--hivis);
  box-shadow: 12px 0 0 var(--ink-3);
  margin-right: 12px;
  flex: none;
}
.sim__kind { color: var(--ink-3); font-weight: 400; font-size: var(--fs--1); }
.sim__buttons { display: flex; gap: 2px; margin-left: auto; }
.sim-btn {
  display: inline-flex; align-items: center; gap: .45em;
  min-height: 44px; min-width: 44px;
  padding: 0 .8em;
  border: 1px solid transparent;
  border-radius: var(--r-1);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: var(--fs--1);
}
.sim-btn:hover { background: var(--surface-2); }
.sim-btn svg { width: 16px; height: 16px; flex: none; }
.sim-btn[data-act="play"] { background: var(--accent); color: var(--accent-ink); }
.sim-btn[data-act="play"]:hover { background: var(--accent-hover); }
.sim-btn[data-act="play"][data-state="playing"] { background: var(--surface-2); color: var(--ink); }
@media (max-width: 479.98px) { .sim-btn .lbl-opt { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); } }

.sim__stage {
  position: relative;
  width: 100%;
  min-height: 160px;
  background: var(--bg);
  touch-action: pan-y;
  overflow: hidden;
}
.sim__stage:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; border-radius: 0; }
.sim__stage canvas { display: block; width: 100%; height: 100%; }
.sim__stage > svg { display: block; width: 100%; height: auto; }
.sim__placeholder {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: var(--ink-3);
  font-size: var(--fs--1);
  text-align: center;
  padding: var(--s-4);
}
.sim__placeholder .dots { display: flex; gap: 6px; justify-content: center; margin-bottom: var(--s-2); }
.sim__placeholder .dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--ink-3); animation: dotpulse 1.2s infinite ease-in-out; }
.sim__placeholder .dots i:nth-child(2) { animation-delay: .15s; }
.sim__placeholder .dots i:nth-child(3) { animation-delay: .3s; }
@keyframes dotpulse { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }

.sim__status:empty { display: none; }
.sim__status {
  margin: 0 !important;
  padding: var(--s-2) var(--s-4);
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
  font-weight: 500;
  display: flex; align-items: center; gap: .5em;
}
.sim__status[data-kind="warn"] { background: var(--warn-soft); color: var(--ink); }
.sim__status[data-kind="warn"]::before { content: ""; width: 8px; height: 8px; background: var(--warn); transform: rotate(45deg); flex: none; }
.sim__status[data-kind="danger"] { background: var(--danger-soft); }
.sim__status[data-kind="danger"]::before { content: ""; width: 8px; height: 8px; background: var(--danger); transform: rotate(45deg); flex: none; }
.sim__status[data-kind="ok"] { background: var(--ok-soft); }

.sim__panel {
  display: grid;
  gap: var(--s-5);
  padding: var(--s-4);
  border-top: 1px solid var(--line);
}
.sim__panel:not(:has(.sim__controls > *, .sim__readouts > *)) { display: none; }
@media (min-width: 760px) {
  .sim__panel { grid-template-columns: minmax(0, 1fr) minmax(13rem, 17rem); align-items: start; }
  .sim__panel:not(:has(.sim__readouts > *)) { grid-template-columns: 1fr; }
  .sim__panel:not(:has(.sim__controls > *)) { grid-template-columns: 1fr; }
}
.sim__controls { display: grid; gap: var(--s-4); grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); align-items: start; }
.sim__controls:empty { display: none; }
.sim__group {
  border: 0; margin: 0; padding: 0; min-width: 0;
  display: grid; gap: var(--s-3);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  grid-column: 1 / -1;
}
.sim__group > legend { padding: 0; margin-bottom: var(--s-2); font-weight: 600; font-size: var(--fs--1); color: var(--ink-2); }
.sim__controls .field select, .sim__controls .field input[type="number"] { width: 100%; }
.sim__controls .btn { justify-self: start; }
.sim__btnrow { display: flex; flex-wrap: wrap; gap: var(--s-2); grid-column: 1 / -1; }

.sim__readouts {
  display: grid;
  gap: 0;
  margin: 0;
  align-content: start;
  border-top: 2px solid var(--ink);
}
.sim__readouts:empty { display: none; }
.readout {
  display: flex; justify-content: space-between; align-items: baseline; gap: var(--s-3);
  padding: .5em 0;
  border-bottom: 1px solid var(--line);
}
.readout dt { color: var(--ink-2); }
.readout dd { margin: 0; font-weight: 700; font-variant-numeric: tabular-nums lining-nums; text-align: right; white-space: nowrap; }
.readout dd .unit { font-weight: 500; color: var(--ink-2); margin-left: .25em; }
.readout--big dd { font-size: var(--fs-1); }
.readout[data-tone="warn"] dd { color: var(--warn); }
.readout[data-tone="danger"] dd { color: var(--danger); }
.readout[data-tone="ok"] dd { color: var(--ok); }
.los-chip {
  display: inline-grid; place-items: center;
  min-width: 1.7em; height: 1.5em;
  padding: 0 .3em;
  border-radius: 3px;
  font-weight: 700;
  font-size: .9em;
}

.sim__guide {
  display: grid;
  gap: var(--s-4);
  padding: var(--s-4);
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-2) 50%, var(--surface));
  font-family: var(--font-body);
  font-size: var(--fs--1);
}
.sim__guide:not(:has(.sim__try > ol, .sim__try > ul, .sim__aha-body > *, .sim__note > *)) { display: none; }
@media (min-width: 760px) { .sim__guide { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); column-gap: var(--s-6); } }
.sim__guide h4 { font-family: var(--font-ui); font-size: var(--fs--1); font-weight: 600; color: var(--ink); }
.sim__try ol, .sim__try ul { margin-top: var(--s-2); padding-left: 1.3em; }
.sim__try li + li { margin-top: .35em; }
.sim__try:not(:has(ol, ul)) { display: none; }
.sim__aha-toggle {
  display: inline-flex; align-items: center; gap: .5em;
  min-height: 44px;
  padding: 0;
  border: 0; background: transparent;
  font-family: var(--font-ui); font-weight: 600; font-size: var(--fs--1);
  color: var(--accent);
}
.sim__aha-toggle::before {
  content: ""; width: 7px; height: 7px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--dur) var(--ease);
}
.sim__aha-toggle[aria-expanded="true"]::before { transform: rotate(45deg); }
.sim__aha-body { padding: var(--s-3) var(--s-4); border-left: 3px solid var(--hivis); background: var(--surface); border-radius: 0 var(--r-1) var(--r-1) 0; animation: reveal 150ms var(--ease); }
.sim__aha:not(:has(.sim__aha-body > *)) { display: none; }
.sim__note { grid-column: 1 / -1; color: var(--ink-2); }
.sim__note:empty { display: none; }
.sim__note > * + * { margin-top: .5em; }

/* fullscreen */
.sim:fullscreen { display: flex; flex-direction: column; overflow: auto; border-radius: 0; }
.sim:fullscreen .sim__stage { flex: 1 1 auto; height: auto !important; min-height: 50vh; }

/* ---------- hero variant: no chrome, overlay pause and readout ---------- */
cs-sim[variant="hero"] { max-width: none; }
.sim--hero { background: transparent; border: 0; border-radius: 0; overflow: visible; }
.sim--hero .sim__stage { background: transparent; }
.sim--hero .sim__overlay {
  position: absolute;
  left: var(--gutter); right: var(--gutter); bottom: var(--s-4);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-2) var(--s-4);
  pointer-events: none;
}
.sim--hero .sim__overlay > * { pointer-events: auto; }
.sim--hero .hero-readout {
  display: inline-flex; align-items: baseline; gap: .5em;
  padding: .4em .75em;
  border-radius: var(--r-1);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
  color: var(--ink-2);
}
.sim--hero .hero-readout strong { color: var(--ink); font-size: var(--fs-0); }
.sim--hero .sim-btn { background: color-mix(in srgb, var(--surface) 88%, transparent); border-color: var(--line); color: var(--ink); }
.sim--hero .sim-btn:hover { background: var(--surface); }
.sim--hero .sim-btn[data-act="play"][data-state="paused"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
@media (max-width: 639.98px) {
  .sim--hero .sim__overlay { position: static; padding: var(--s-2) var(--gutter) 0; }
}

/* Integration fix (WP1/WP3 requests): checkbox labels sit next to their box; status bar spans the frame. */
.field > label.check-field { justify-content: flex-start; }
.sim__status { max-width: none; }